LG Therma V AHBW A0 Series User Manual

Self-Diagnosis Feature
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Copyright ©2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
21 DC Peak (IPM Fault) O Outdoor
22 CT 2 (Max CT) O Outdoor
23 DC Link Voltage is low O Outdoor
24 High Pressure / Low Pressure switch activated O Outdoor
25 Voltage is too low or too high O Outdoor
26 Problem in DC Compressor positioning O Outdoor
27 PSC Fault O Outdoor
28 DC Link Voltage is high O Outdoor
29 High current at Compressor phases O Outdoor
32 Temperature at discharge-pipe is too high O Outdoor
37 The pressure ratio is too high O Outdoor
40 Problem in CT sensor O Outdoor
41 Problem in discharge-pipe temperature sensor O Outdoor
44 Problem in ambient temperature sensor O Outdoor
45 Problem in condenser-pipe temperature sensor O Outdoor
46 Problem in suction-pipe temperature sensor O Outdoor
52 Bad communication between internal PCBs O Outdoor
53 Bad communication between unit and Outdoor unit O Outdoor
60 EEPROM Checksum mismatched O Outdoor
61 Temperature at condenser-pipe is too high O Outdoor
62 Temperature at heatsink is too high O Outdoor
63 Temperature at condenser-pipe is too low O Outdoor
65 Problem in heatsink temperature sensor O Outdoor
73 Instant over current input O Outdoor
1 time
2 times
3 times
4 times
5 times
6 times
7 times
8 times
9 times
2 times
7 times
none
1 time
4 times
5 times
6 times
2 times
3 times
none
1 time
2 times
3 times
5 times
3 times
Code
No.
Description Unit
Classification LED Blinking
Slight
Trouble
Heavy
Trouble
Option
Trouble
Error LED1 (Red) LED2 Green)
2 times
3 times
4 times
5 times
6 times
7 times
Error indicator (outdoor PCB)
Outdoor unit error
Ex) Error 21 (DC Peack)
1 Time 1 Time 1 Time
2 Times2 Times2 Times
1 Sec.
2 Sec. 2 Sec.
1 Sec. 1 Sec.
LED01G
(RED)
LED02G
(GREEN)
CAUTION
Precaution in service or check
Even after stopping the operation of product, it takes some time to discharge the remaining electricity of the electrolytic
capacitor that was charged early. Before conducting a checking or repairing job, pull out the plug out of the outlet and
make sure that the lamp on the control board outdoor unit is off.

LG Therma V AHBW A0 Series Specifications

General

Brand	LG
Model	Therma V AHBW A0 Series
Category	Air Conditioner
Language	English